Your Breville/ Polyscience smoking gun has a 3/4" round stainless steel mesh filter that protects the fan blades from becoming jammed by small pieces of wood chip. These filters need regular cleaning and replacing if they become damaged, clogged or lost. 

30 X Replacement Mesh Filter Screens for The SMOKING GUN by BREVILLE/PolyScience

The Breville Polyscience Smoking Pro gun requires a ONE INCH size - This NOT the correct size for the Breville Polyscience Smoking Pro gun

Part D - Removable mesh filter Push out with finger to replace (As shown in picture #2)

Quantity: 30 Replacement 3/4" Round Filter Screens

Fits: Breville/PolyScience - The Smoking Gun™

(please refer to your manual and the pictures posted above)

Material: Type 304 Stainless Steel

Size: 3/4"

(fits The Smoking Gun™ BSM600SIL/ Model SP0016301)

Quantity: Three Bags /10 PIECES Stainless Steel Mesh Screens each

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Tracking Number is provided at time of shipping